Ancient proteins dating back 195 million years have been found inside a dinosaur bone according to BBC.
The discovery pushes back the oldest evidence for preserved proteins by 100 million years.
Scientists have also found traces of a mineral that probably came from the blood of the early Jurassic dinosaur.
Soft tissues provide new insights into the biology of dinosaurs and how they evolved.
They are rarely preserved during the process of fossilisation, during which bones and teeth are slowly transformed into "rock".